| Ponte da Barca to Orangevale (California) | 5,457.17 mi (8,782.47 km) |
| Ponte da Barca to Orchards (Washington) | 5,159.98 mi (8,304.18 km) |
| Ponte da Barca to Orcutt (California) | 5,614.80 mi (9,036.14 km) |
| Ponte da Barca to Oregon (Ohio) | 3,734.86 mi (6,010.67 km) |
| Ponte da Barca to Oregon (Wisconsin) | 3,962.11 mi (6,376.39 km) |
| Ponte da Barca to Oregon City (Oregon) | 5,179.10 mi (8,334.96 km) |
| Ponte da Barca to Orem (Utah) | 5,010.29 mi (8,063.29 km) |
| Ponte da Barca to Orinda (California) | 5,533.39 mi (8,905.13 km) |
| Ponte da Barca to Orland Park (Illinois) | 3,938.05 mi (6,337.68 km) |
| Ponte da Barca to Orlando (Florida) | 4,098.51 mi (6,595.91 km) |
| Ponte da Barca to Ormond Beach (Florida) | 4,055.09 mi (6,526.03 km) |
| Ponte da Barca to Oro Valley (Arizona) | 5,338.24 mi (8,591.06 km) |
| Ponte da Barca to Oroville (California) | 5,429.95 mi (8,738.66 km) |
| Ponte da Barca to Oshkosh (Wisconsin) | 3,889.46 mi (6,259.49 km) |
| Ponte da Barca to Oskaloosa (Iowa) | 4,162.87 mi (6,699.49 km) |
